ATV/UTV Engine
ATV/UTV Engine Parts at JJ Motorsports
Maximize your ATV or UTV's engine life with top-quality components from JJ Motorsports. Our selection includes gasket kits, connecting rods, water pump rebuild kits, and timing plugs designed for reliable sealing, strength, and easy installation in demanding off-road conditions. Compatible with Polaris, Can-Am, Honda, and more, these parts ensure peak power, reduced wear, and efficient operation for trail riding or utility work.
Shop trusted brands like Moose Racing for rebuild kits and Winderosa for gaskets. Explore related categories such as ATV/UTV air and fuel for intake upgrades or ATV/UTV drivetrain for transmission enhancements.
Top ATV/UTV Engine Products
- MOOSE UTILITY Clutch Cover Gasket Seal 500-1265-PU – Durable seal for clutch cover protection.
- WINDEROSA Standard Bore Gasket Kit 810585 – Complete kit for engine sealing and rebuilds.
- WORKS CONNECTION Engine Timing Plug 24-590 – Precision plug for accurate timing adjustments.
- MOOSE RACING Connecting Rod MR5026 – High-strength rod for engine durability.
- MOOSE RACING Water Pump Rebuild Kit 821865 – Comprehensive kit for water pump maintenance.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HOT RODS Crankshaft Kit CBK0215
HOT RODS
$1,164.95If you're serious about maximizing displacement and torque output without a complete engine rebuild, a stroker crankshaft is one of the most cost-effective power adders available. The HOT RODS...09210596- SKU:
- 09210596
- Availability:
- Ships Same Business Day
- Weight:
- 19.40 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT
$1,164.95 -
HOT RODS Crankshaft Kit CBK0216
HOT RODS
$1,297.95If you're serious about maximizing displacement and low-end torque without a complete engine rebuild, a stroker crankshaft is one of the most cost-effective upgrades available. The HOT RODS CBK0216...09210594- SKU:
- 09210594
- Availability:
- Ships Same Business Day
- Weight:
- 19.45 LBS
- PRODUCT NAME:
- CRANKSHAFT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$1,297.95 -
HOT RODS Crankshaft Kit 4412
HOT RODS
$927.95If you're building a long-stroke engine for your ATV, you need a crankshaft assembly engineered to handle the increased demands of extended stroke geometry. The HOT RODS Crankshaft Kit 4412 arrives...09210513- SKU:
- 09210513
- Availability:
- Ships Same Business Day
- Weight:
- 15.30 LBS
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 66.00 MM
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- DISPLACEMENT:
- 750 CC
- FEATURES:
- STANDARD CRANKSHAFT
- RIDING STYLE:
- UTV
- TYPE:
- OEM STROKE
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
$927.95 -
HOT RODS Crankshaft Kit CBK0109
HOT RODS
$662.95If you're building or rebuilding an engine that demands reliability under extreme conditions, the HOT RODS Crankshaft Kit CBK0109 delivers OEM-spec performance without compromise. This...09210350- SKU:
- 09210350
- Availability:
- Ships Same Business Day
- Weight:
- 12.59 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CRANKSHAFT KIT
- RIDING STYLE:
- ATV
- TYPE:
- OEM
$662.95 -
HOT RODS Crankshaft - Stroker 4160
HOT RODS
$645.95If you're serious about maximizing displacement and low-end torque on your ATV, a stroker crankshaft is one of the most effective bolt-on upgrades available. The HOT RODS Crankshaft – Stroker 4160...09210048- SKU:
- 09210048
- Availability:
- Ships Same Business Day
- Weight:
- 10.37 LBS
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- ATV
- STROKE LENGTH METRIC:
- 67.80 MM
- DISPLACEMENT:
- 471 CC
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- MODEL:
- 4-CYCLE
- STROKE LENGTH:
- 67,80 MM
- TYPE:
- STROKER
$645.95Qty in Cart: 0Quantity:Price:$645.95Subtotal: -
HOT RODS Crankshaft 4073
HOT RODS
$476.95If you're building a long-stroke engine for your ATV, the HOT RODS Crankshaft 4073 eliminates the guesswork and machine work typically required for displacement upgrades. This complete assembly...09210044- SKU:
- 09210044
- Availability:
- Ships Same Business Day
- Weight:
- 9.38 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- COLOR/FINISH:
- STEEL
- TYPE:
- OEM STROKE
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- UNITS:
- ASSEMBLY
- DISPLACEMENT:
- 450 CC
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- STROKE LENGTH METRIC:
- 63.40 MM
$476.95 -
HOT RODS Crankshaft - Stroker 4173
HOT RODS
$678.25If you're serious about extracting maximum displacement and low-end torque from your ATV, a stroker crankshaft is one of the most effective bolt-on upgrades available. The HOT RODS Crankshaft 4173...09210043- SKU:
- 09210043
- Availability:
- Ships Same Business Day
- Weight:
- 9.02 LBS
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- DISPLACEMENT:
- 470 CC TO 471 CC
- MODEL:
- 4-CYCLE
- RIDING STYLE:
- ATV
- STROKE LENGTH:
- 66,40 MM
- STROKE LENGTH METRIC:
- 66.40 MM
- COLOR/FINISH:
- STEEL
- TYPE:
- STROKER
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
$678.25 -
HOT RODS Crankshaft 4070
HOT RODS
$476.95If you're building a long-stroke engine for your ATV, you need a crankshaft engineered to handle increased displacement and sustained performance demands. The HOT RODS Crankshaft 4070 arrives...09210042- SKU:
- 09210042
- Availability:
- Ships Same Business Day
- Weight:
- 10.37 LBS
- DISPLACEMENT:
- 450 CC
- MODEL:
- 4-CYCLE
- TYPE:
- OEM STROKE
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- MATERIAL:
- 4140 STEEL
- UNITS:
- ASSEMBLY
- COLOR/FINISH:
- STEEL
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- STROKE LENGTH METRIC:
- 62.00 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$476.95 -
HOT RODS Crankshaft - Stroker 4170
HOT RODS
$645.95Increasing displacement is one of the most direct paths to more power, and the HOT RODS Crankshaft - Stroker 4170 delivers measurable gains without the machine work typically required for long-stroke...09210041- SKU:
- 09210041
- Availability:
- Ships Same Business Day
- Weight:
- 10.21 LBS
- FEATURES:
- HEAVY DUTY CRANKSHAFT
- STROKE LENGTH METRIC:
- 65.00 MM
- COLOR/FINISH:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH:
- 65,00 MM
- TYPE:
- STROKER
- DISPLACEMENT:
- 470 CC
- MATERIAL:
- 4140 STEEL
- MODEL:
- 4-CYCLE
- UNITS:
- ASSEMBLY
- PRODUCT NAME:
- CRANKSHAFT ASSEMBLY
- RIDING STYLE:
- ATV
$645.95Qty in Cart: 0Quantity:Price:$645.95Subtotal: -
VERTEX Piston Ring 590382000002
VERTEX
$52.95Piston rings are critical wear items that directly impact engine compression, blow-by control, and overall performance longevity. The VERTEX 590382000002 delivers superior durability through advanced...09120389- SKU:
- 09120389
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- PISTON DIAMETER METRIC:
- 71.95 MM
- UNITS:
- SET
$52.95Qty in Cart: 0Quantity:Price:$52.95Subtotal: -
VERTEX Piston Ring 590380000001
VERTEX
$55.60Piston rings are critical wear items that directly impact compression, blow-by control, and oil consumption—factors that separate a well-tuned engine from one that's struggling. The VERTEX Piston...09120388- SKU:
- 09120388
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 80.00 MM
- PISTON DIAMETER METRIC:
- 79.95 MM
- RIDING STYLE:
- UTV
- UNITS:
- SET
$55.60Qty in Cart: 0Quantity:Price:$55.60Subtotal: -
JE PISTONS Piston Kit 284765
JE PISTONS
$329.99When you're pushing your engine to its limits in competition or high-performance applications, your pistons need to handle extreme pressures and temperatures without compromise. JE PISTONS' Pro...09105896- SKU:
- 09105896
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- WALL THICKNESS:
- 0,150'
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 105.50 MM
- DISPLACEMENT:
- 735 CC
- UNITS:
- KIT
- WALL THICKNESS IMPERIAL:
- 0.150'
$329.99Qty in Cart: 0Quantity:Price:$329.99Subtotal: -
JE PISTONS Piston Kit 284685
JE PISTONS
$329.99When you're pushing your engine to the absolute limit in competition, your pistons need to handle extreme pressures without compromise. JE Pistons' 2618-T6 forged aluminum construction delivers the...09105895- SKU:
- 09105895
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- DISPLACEMENT:
- 449 CC
- WALL THICKNESS:
- 0,160'
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 95.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- UNITS:
- KIT
- WALL THICKNESS IMPERIAL:
- 0.160'
$329.99Qty in Cart: 0Quantity:Price:$329.99Subtotal: -
JE PISTONS Piston Kit 284682
JE PISTONS
$329.99When you're pushing your engine to the absolute limit in competition, your pistons need to survive extreme combustion pressures and temperatures without compromise. JE PISTONS' Pro Series 284682 kit...09105894- SKU:
- 09105894
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- BORE SIZE METRIC:
- 96.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS:
- 0,150'
- WALL THICKNESS IMPERIAL:
- 0.150'
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$329.99 -
JE PISTONS Piston Kit 284681
JE PISTONS
$346.99When you're pushing your engine to its absolute limits—whether on the track or in competition—piston durability and precision become non-negotiable. JE PISTONS' 284681 kit delivers the engineering...09105893- SKU:
- 09105893
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 13.8:1
- PISTON HEAD SHAPE:
- DOMED
- BORE SIZE METRIC:
- 94.00 MM
- WALL THICKNESS:
- 0,150'
- WALL THICKNESS IMPERIAL:
- 0.150'
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$346.99 -
JE PISTONS Piston Kit 284680
JE PISTONS
$329.99When you're pushing your engine to the absolute limit in competition, your pistons need to withstand extreme pressures and temperatures without compromise. JE Pistons' 284680 Kit delivers the...09105892- SKU:
- 09105892
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS:
- 0,150'
- WALL THICKNESS IMPERIAL:
- 0.150'
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE SIZE METRIC:
- 94.00 MM
- RIDING STYLE:
- ATV
$329.99 -
JE PISTONS Piston Kit 284679
JE PISTONS
$329.99When you're running extreme competition builds, factory pistons become a liability. JE Pistons' Pro Series 284679 kit is engineered specifically for professional racing applications, delivering the...09105891- SKU:
- 09105891
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS IMPERIAL:
- 0.150'
- DISPLACEMENT:
- 449 CC
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- BORE SIZE METRIC:
- 94.00 MM
- RIDING STYLE:
- ATV
- WALL THICKNESS:
- 0,150'
$329.99Qty in Cart: 0Quantity:Price:$329.99Subtotal: -
JE PISTONS Piston Kit 281815
JE PISTONS
$524.99When you're running at the edge of performance limits, your pistons need to match your commitment to precision and durability. JE Pistons' 281815 kit delivers the metallurgical advantage and internal...09105889- SKU:
- 09105889
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- BORE SIZE METRIC:
- 80.00 MM
- RIDING STYLE:
- UTV
- WALL THICKNESS:
- 0,140'
- PISTON HEAD SHAPE:
- DISHED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- WALL THICKNESS IMPERIAL:
- 0.140'
- COMPRESSION RATIO IMPERIAL:
- 10.75:1
- DISPLACEMENT:
- 760 CC
- UNITS:
- KIT
$524.99 -
JE PISTONS Piston Kit 274209
JE PISTONS
$346.99When you're pushing your engine to the limit in professional competition, your pistons need to be engineered for extreme duty—not just capable of surviving, but optimized for maximum performance...09105885- SKU:
- 09105885
- Availability:
- Ships Same Business Day
- Weight:
- 1.36 LBS
- BORE SIZE METRIC:
- 95.00 MM
- PISTON HEAD SHAPE:
- DOMED
- PRODUCT NAME:
- PISTON KIT
- WALL THICKNESS:
- 0,160'
- WALL THICKNESS IMPERIAL:
- 0.160'
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- DISPLACEMENT:
- 449 CC
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$346.99 -
JE PISTONS Piston Kit 274195
JE PISTONS
$325.99When you're pushing your engine to the limit in competition, piston failure isn't an option—it's a catastrophe. JE PISTONS' 274195 kit delivers the strength and precision engineered specifically for...09105884- SKU:
- 09105884
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- RIDING STYLE:
- ATV
- WALL THICKNESS:
- 0,140'
- WALL THICKNESS IMPERIAL:
- 0.140'
- DISPLACEMENT:
- 249 CC
- BORE SIZE METRIC:
- 74.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
$325.99
